Return to Wuhan: WHO launches investigation into the origin of the coronavirus

An international team from the World Health Organization is launching an investigation into the origins of the pandemic SARS-CoV-2 pandemic, an ambitious complication of the sensitive political situation between the US and China. the first cases, could provide valuable evidence to prevent future epidemics. The effort is expected to take years, but it may prove impossible to give a definitive answer. Most scientists believe the new coronavirus came from bats, but may have passed to humans through an intermediate host such as pangolins. The bats are also believed to have originated from the coronavirus that caused the SARS epidemic in 2002-04. In that case, the intermediate host was most likely Nuctereutes procyonoides, a raccoon-like animal bred in Asia for its fur. “Locating an animal with a SARS-CoV-2 infection is like looking for a needle. in the largest pile of straw in the world. “They may never find it,” Angela Rasmussen, a virologist at Columbia University in New York, told Nature. “Chinese virus.” WHO experts, whose names have not been released, are at risk of being caught between US and US fire. Of China. Outgoing US President Donald Trump insists on talking about a “Chinese virus”, while “the Chinese government is doing everything it can to prove that this is not the case”, says Linfa Wang, a virologist at the National University of Singapore. A member of the WHO team investigating the origins of SARS even claims that, due to the political dispute, the findings of investigations already under way in China have not been made public. Trump has accused the WHO of serving the Beijing positions and organism. The newly elected successor of Joe Biden has pledged to reverse Trump’s decision, which creates a more positive atmosphere, Wang said. Many of the first Covid-19 patients had visited the market, but it remains unclear whether this was the zero point of the pandemic. According to the WHO, the virus was not detected in frozen animal samples sold on the market, but was detected in environmental samples came mainly from sewage. Experts will prioritize mammals known to be infected with coronaviruses, such as mink and felines. They will also interview early patients and examine blood samples taken by Wuhan medical staff in the months leading up to the outbreak. research.Research outside ChinaResearch is likely to expand beyond China. “Where an epidemic is initially perceived does not necessarily correspond to where it started,” the WHO said in a statement, noting that fragments of SARS-CoV-2 genetic material had been detected in sewage samples before the first case was recorded last December. The WHO label may refer to an unpublished study, available only as a pre-publication, which examined retrospective wastewater samples in Spain from March 2019 until today. If the findings are correct, the virus was already in Spain before the Wuhan crisis broke out. Extending the research beyond China is a logical step, as many scientists suspect that the immediate ancestor of SARS-CoV-2 came from bats outside China. “In any case, much of the research will be based solely on science,” he said. A spokesman for the organization said that the investigation of the case “will be open-minded, thorough, without ruling out any case”. Follow it on Google News and be the first to know all the news. See all the latest news from Greece and the world, at

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